Serum/plasma concentrations of vitamins, subgroups of fatty acids, fatty acid indexes and activity index of desaturases according to smoking status¹.

<p>¹ Given as median (25^th, 75^th percentile). Missing values: Folate: n = 2 (0.1%); B₂: n = 2 (0.1%); B₆: n = 2 (0.1%); B₁₂: n = 494 (36.2%); MMA: n = 2 (0.1%). AA, arachidonic acid; B₂, riboflavin; B₆, pyridoxal 5’-phosphatase; B₁₂, cobalamin; D5D, delta 5 desaturase; D6D, delta 6 desaturase; MMA, methylmalonic acid; omega-3 index, (EPA + DHA) of total fatty acids; n-3 D5D, EPA/eicosatetraeonic acid; n-3 D6D, stearidonic acid/alpha linolenic acid; n-6 D5D, arachidonic acid/dihomo-γ-linolenic acid; n-6 D6D, γ-linolenic acid/ linoleic acid; SFA, saturated fatty acids.</p><p>² Difference between smokers and non-smokers were calculated by Mann-Whitney U test.</p><p>³ EPA/AA-ratio * 100</p><p>Serum/plasma concentrations of vitamins, subgroups of fatty acids, fatty acid indexes and activity index of desaturases according to smoking status<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0129049#t003fn001" target="_blank">¹</a>.